New here, been lurking for a while and figured I should register and say hello.
My applications on batteries is very basic, I am restoring several vintage Garden tractors and I am looking to replace the lead acid batteries with my own built li-ion packs. I have 5-6 tractors so my plan is to just take the pack to the tractors when needed and I only need 1-2 packs as they will never all be run at the same time. I am tired of trickle charging through the winter when I can use the packs in the winter for other projects.
I already have a source of used batteries and I am starting to do my first charging and testing on the first 30-60 cells (18650). Not even sure how many but they are free so who's counting
Most everything I have figured out, looking through the site now to learn more on the BMS boards used.
Where I am confused about is how the system will work when the charging output of the tractor will only be about 13.8V, current not sure of yet. Not worried about it charging the battery as that can be done at night. But will have to determine the cranking loads and make sure it can at least crank it for a days work.
Oh almost forgot, I am building an electric riding mower. Got the motor mounted and test running on 2-24V power tool batteries. So will be building two packs for it. One for power and the other for the blades which will be driven by a separate battery. Might be a good one to post in the project forum, might give me the incentiveto finish it.
Here is a video, just remember this was a test. Wasn't worried about being neat on the wiring..
Well, video will be in next post as it requires me to post one time before using URL's...
BTw.. Name is Randy
Here is the video of the riding mower conversion.
My applications on batteries is very basic, I am restoring several vintage Garden tractors and I am looking to replace the lead acid batteries with my own built li-ion packs. I have 5-6 tractors so my plan is to just take the pack to the tractors when needed and I only need 1-2 packs as they will never all be run at the same time. I am tired of trickle charging through the winter when I can use the packs in the winter for other projects.
I already have a source of used batteries and I am starting to do my first charging and testing on the first 30-60 cells (18650). Not even sure how many but they are free so who's counting
Most everything I have figured out, looking through the site now to learn more on the BMS boards used.
Where I am confused about is how the system will work when the charging output of the tractor will only be about 13.8V, current not sure of yet. Not worried about it charging the battery as that can be done at night. But will have to determine the cranking loads and make sure it can at least crank it for a days work.
Oh almost forgot, I am building an electric riding mower. Got the motor mounted and test running on 2-24V power tool batteries. So will be building two packs for it. One for power and the other for the blades which will be driven by a separate battery. Might be a good one to post in the project forum, might give me the incentiveto finish it.
Here is a video, just remember this was a test. Wasn't worried about being neat on the wiring..
Well, video will be in next post as it requires me to post one time before using URL's...
BTw.. Name is Randy
Here is the video of the riding mower conversion.